Compact 2D nonlinear photonic crystal source of beamlike path entangled photons

E. Megidish*, A. Halevy, H. S. Eisenberg, A. Ganany-Padowicz, N. Habshoosh, A. Arie

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


We demonstrate a method to generate entangled photons with controlled spatial shape by parametric down conversion (PDC) in a 2D nonlinear crystal. A compact and novel crystal source was designed and fabricated, generating directly path entangled photons without the use of additional beam-splitters. This crystal supports two PDC processes, emitting biphotons into two beamlike modes simultaneously. Two coherent path entangled amplitudes of biphotons were created and their interference observed. Our method enables the generation of entangled photons with controlled spatial, spectral and polarization properties.

Original languageAmerican English
Pages (from-to)6689-6696
Number of pages8
JournalOptics Express
Issue number6
StatePublished - 25 Mar 2013


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